Loading means for concrete mixers and the like



March 15, 1960 A. FAURE 2,928,561

LOADING MEANS FOR CONCRETE MIXERS AND THE LIKE Filed July 16, 1957 3Sheets-Sheet 1 [mm]! (or.-

March 15, 1960 A. FAURE 2,928,561

LOADING MEANS FOR CONCRETE MIXERS AND THE LIKE Filed July 16, 1957 3Sheets-Sheet 2' lrwantor:

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March 15, 1960 A, FAURE 2,928,561

LOADING MEANS FOR CONCRETE MIXERS AND THE LIKE Filed July 16, 1957 3Sheets-Sheet 3 Invader.-

United States Patent LOADING MEANS FOR CONCRETE AND THE LIKE AntoineFaure, Saint-Etienne, France Application July 16, 1957, Serial No.672,190 Claims priority, application France July 21,1956 1 2 Claims.(Cl. 214-92) Movable concrete mixers used on building yards are providedwith a skip which is filled either through a shovel or a wheel barrow oragain by means of railroad trucks fed through storing hoppers or else asis more generally the case nowadays by means of hand-operated scrapersfor feeding their mixing container with the desired aggregated material.

Such scrapers have a tendency to be more widely used since they allowobtaining the desired loading throughput under control of a single manfor the loading without requiring any substantial appliances such ashoppers and loading cranes as is generally the case when feeding bymeans of tip-wagons. The agglomerated material constituted by sand,gravel, slag and the like is as a matter of factstored on the ground inproximity with the concrete mixers and it is removed by the shovel ofthe scraper which latter is drawn along by means of a cable through aspecial winch which feeds the material into the skip of the concretemixer. Said scrapers require however the use of special winches for thedrawing of their shovels.

In order to cut out this drawback, I have devised an improvement inconcrete mixers and the like which consists in associating the shovel ofa hand-operated scraper with the'winch and cable actuating the skip ofthe concrete mixer or the like and thus the same cable ensures insuccession the drawing of the scraper shovel and the raising of the skipof the concrete mixer or the like.

Obviously, said improvement is applicable more particularly to concretemixers, but it is also applicable of course to any other raising andhoisting apparatus incorporating skips.

The raising movement of the skip should be performed only when it isfull; to this end the skip and the scraper are provided with connectingabutment means engaging each other when the scraper shovel has entered aposition above the skip, so as to allow a raising of said skip through atraction exerted on the scraper.

Cooperating guiding members are furthermore provided advantageously onthe skip and on the shovel of the scraper, so as to constrain the latterto remain in the same position with reference to the skip when thelatter is turned upside down with reference to the concrete mixer.

The skip may furthermore be provided with locking means holding it inits lowermost position during its filling so that it may not be raisedin an untimely manner through a traction exerted on the cable andintended to draw only the scraper shovel.

I have illustrated by way of example in the accompanying drawings a fewembodiments of the invention, which should not be construed in alimiting sense. In said drawings:

Figs. 1, 2, 3 and 4 are elevational side views showing the differentstages of operation of the loading system according to my invention asapplied to a concrete mixer with an obliquely moving skip.

, 2,928,561 Patented Mar. .15, 1960 Figs. 5, 6 and 7 show in elevationalview two modifications of last mentioned loading system.

' Fig.8 shows an application of the invention to a concrete mixer with avertical skip.

Figs. 9, 10 and 11 show three operative stages of a loading systemaccording to my invention in its general 4 application to hoistingmeans.

Fig. 12 is a view along line a-b of Fig. 7.

Figs. 1, 2, 3 and 4 illustrate ,the loading system forming the object ofmy invention as applied to a concrete mixer; in said figures, 2designates the container of the concrete mixer, 3 the slideway for theskip and 4 the actual skip which is lowered for its loading inside thepit 5. The shovel of the hand operated scraper is shown at 6.

mixer, said winch being actuated by the motor 31 and controlling thewinding of the cable 7 Said cable passes in succession over atransmission pulley 8 carried by the concrete mixer and under atransmission pulley 9 carried by the skip 4 and its end is secured at 10to the scraper shovel 6. Between the pulley 9 and the scraper 6, thecable 7 passesthrough a perforation formed in a plate 12 rigid with theskip 4 and it carries in proximity with said scraper 6 a stop 13. Theskip 4 carries furthermore a guideway 14.

The skip4 being set in the pit,5, its filling is obtained through anemptying of the shovel 6 of the scraper into said skip. To this end,said shovel is drawn in by the cable 7 wound over the winch drum 30, sothat it is filled and pushes forwardly as illustrated in Fig. 1 a massof aggregated material. When the shovel has been brought into a positionabove the skip 4, it is turned over into the skip as illustrated in Fig.2, or again it pours into said skip the material urged forwardly by saidshovel.

When after a number of operations, i.e. after a number of stagesemptying or pouring out the material out of the shovel 6, the skip 4 isfull, the cable 7 is drawn forwardly until the stop 13 engages the plate12 while the front of the shovel engages the guideway 14 as illustratedin Fig. 3.

The traction exerted on the cable 7 continuing, said cable acts then onthe skip itself by reason of the contact between the stop 13 and theplate 12, which constrains thus the skip 4 to rise along the slideways 3until it rocks and empties into the container 2 of the concrete mixer asillustrated in Fig. 4. The guide 14 for the skip 4 prevents the shovel 6from being turned upside down during the rocking of the skip.

In order to prevent the motor 31 and the winch 30 of the concrete mixerfrom raising the shovel 6 together with the skip 4 and its load, it isalso possible to secure said shovel removably to the end of the cable 7.A hook 20 secured to said cable to the rear of the stop 13 allows as amatter of fact and as illustrated in Figs. 5 and 6 disconnecting theblade when the skip 4 is full, so that said shovel may remain on theground during the raising of the skip.

Furthermore, in order to provide for the raising of the skip 4 throughdriving means having a power higher than that which is sufiicient forthe mere drawing along of the scraper shovel it is possible asillustrated in Fig. 7 to insert a tackle 11 between the pulleys 8 and 9.The speed of rising of the skip 4 is thus different from the speed ofmovement of the shovel 6 and the power available for raising the skip isequal to that which serves for the drawing of said shovel multiplied bythe number of strands in the tackle.

Fig. 8 shows the loading system according to my invention as applied toa concrete mixer 15 in which the runway of the skip 16 is vertical. Theshovel is shown 30 designates the drum of the winch of the concrete 2 '3at 17 and the c'ableied in mixer is shown at 18. t

As mentioned hereinab'ov'e, my improved loading system 'is :o f. coursenot limited to concrete. mixers. s1! *is, as a matter offaetyappli'cableito 'anyghoisting means provided.- with a. skin, Thisisshown in'-Figs.f9., IOja'nd 11 wherein 19 designates azskip, adapted tobet-shifted over a substantially vertical runway 21. The "shovel 722 isconnected "with the cable-23 which was provided initially for a rnererising of the skip 12, Asjn the precedingly described case, when theskip 19 i s 'fu1l, the stop 25 carried by the cable 22 isdrawn in untilit bears against the plate 24 rigid with the skip, so that thesubsequent drawing in of the cable 23 may produce a rising of said skip1 H illp t f l g i fy h s i by tm l l m M [sole embodiment andapplicatiqnof the loading system described hr'e inabove By way ofexample and it covers in contradistinction all the modificationsthereofnialling iiafiyi'ng "claims. What I claimis; i

by the winch of the concrete withinfthe scope ofthe iiivention in theaccom- "g 15A power-driven astute eievjttin' and inking :de-

vice for transferring aggregate inaterial ifroin the groundtoaniizierlocat'ed above the ground, comprising in combination, a winch;driving in'ean s 'op eratively'connected:

to said winch for driving the same; 'a "single winch cable partly woundaround said winch; a guidewa'y upwardly a manually controlled 'scrape'rshovel connected to the end of the cable remote fro mfsaidwinch; afcableat? restingabutine'nt fixed 'on'ithe skip between said second pulley andsaid cab1e end;a cooperative travelling abutment fixed on said cablebetween said skip, carried abutment and said cable end to limit travelof the cable relative to the skiprthe construction and arrangement beingsuch that said single cable is effective first to draw the scrapershovel toward said-skip for loading said skip and thereafter, by acontinued movement of the cable, to draw the'cabl'e carriedabiitnientinto engagement with the skip carried abutment and through theabutments to raise the skip; and at least oneadditional stationarypulley around which said cable'is passed after passing said skip carriedpulley, 'to provide a composite pulley system i which 1 affords. saidwinch no mechanical advantage with respect t'o 'said s'craper "shovel solong as said skip remains stationary, b'ut which does provide for amultiplication of winch power in lifting said skip as said skip israised by said cable. 1

material Floaduig and selevating. system as set forth tn.-'1ai' 1,coinpi'ising means for locking saidskip-in its lowermost positionwhilethe-skipis being loaded; i v

I v ke ference s in theffijad t p ent,

,, I UNITED STATES PATENTS mota Fa e y 13 we

